# 10 4 1/8"x9 1/2", colored envelopes are made of quality paper printed in various trendy colors to match our designer papers or letterheads. Glue lid envelopes, the No 9 colored envelopes fit an 8.5x11" sheet of design paper folded in three. Match these colorful envelopes with our designer letterhead, business letterhead, design paper, tri fold brochures and more. Use our mailing labels and seals. Be creative. You can line these envelopes using one of our background design paper. Inkjet and laser printable envelopes.